Home / 879,504,973.16-1,213,712,168.30-477,615,208.95

Finding the Fourth Proportional to 879,504,973.16, 1,213,712,168.30 and 477,615,208.95

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Solution

The fourth proportional to 879,504,973.16, 1,213,712,168.30 and 477,615,208.95 is: 659,106,438.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,504,973.16 : 1,213,712,168.30 = 477,615,208.95 : x
  2. Step 2: Convert to fraction form
    879,504,973.16/1,213,712,168.30 = 477,615,208.95/x
  3. Step 3: Cross multiply
    879,504,973.16x = 1,213,712,168.30 × 477,615,208.95
  4. Step 4: Simplify right side
    879,504,973.16x = 579,687,390,867,762,048
  5. Step 5: Solve for x
    x = 579,687,390,867,762,048/879,504,973.16
  6. Step 6: Final answer
    x = 659,106,438.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.